<template>
<div class="body">
    <div class="wrapper">
        <div class="img"></div>
        <div class="block">
            <div style="margin: 20px 0; text-align: center; font-size: 24px"><b>登 录</b></div>
            <el-form :model="user" :rules="rules" ref="userForm">
                <el-form-item prop="username">
                    <el-input size="medium" prefix-icon="el-icon-user" v-model="user.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input size="medium" prefix-icon="el-icon-lock" show-password v-model="user.password"></el-input>
                </el-form-item>
                <el-form-item style="margin: 10px 0; text-align: right">
                    <el-button type="warning" size="small"  autocomplete="off" @click="$router.push('/register')">注册</el-button>
                    <el-button type="primary" size="small"  autocomplete="off" @click="login">登录</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>

</div>
</template>

<script>
import {setRoutes} from "@/router";

export default {
  name: "Login",
  data() {
    return {
      user: {},
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur' }
        ],
      }
    }
  },
  methods: {
    login() {
      this.$refs['userForm'].validate((valid) => {
        if (valid) {  // 表单校验合法
          this.request.post("/user/login", this.user).then(res => {
            if(res.code === '200') {
              localStorage.setItem("user", JSON.stringify(res.data))  // 存储用户信息到浏览器
              localStorage.setItem("menus", JSON.stringify(res.data.menus))  // 存储用户信息到浏览器

              // 动态设置当前用户的路由
              setRoutes()
              this.$router.push("/")
              this.$message.success("登录成功")
            } else {
              this.$message.error(res.msg)
            }
          })
        }
      });
    }
  }
}
</script>

<style scoped>
.body{
    display: flex;
}
.block{
    position: absolute;
    margin: 350px auto;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    width: 350px;
    height: 250px;
    padding: 20px;
    border-radius: 10px
}
.img{
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: url('../assets/login.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
  .wrapper {
    height: 100vh;
    overflow: hidden;
  }
</style>
